<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<script type="text/javascript">
			var type = '&';
			if (type == '+') {
				console.log('+')
			} else if (type == '-'){
				console.log('-')
			} else if (type == '*'){
				console.log('*')
			} else if (type == '/'){
				console.log('/')
			} else {
				console.log('else');
			}
			console.log("--------");
			switch (type) {
				case '+':
				   console.log('+')
				break;
				case '-':
				   console.log('-')
				break;
				case '*':
				   console.log('*')
				break;
				case '/':
				   console.log('/')
				break;
				default:
				   console.log('default');
				break;
			}
		</script>
	</head>
	<body>
	</body>
</html>
